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(No Model.)

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S. J. JOHNSON.

DUMPING GAR.

WITNESSES:

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6 Sheets-Sheet 1.

Patented Nov. 17, 1896.

l/VVEN 70/2 ATTORNEY B I/FWWL (No Model.) 6 Sheets-Sheet 2.

S. J. JOHNSON.

DUMPING GAR.

No. 571,480. Patented Nov. 17, 1896 ATTORNEY.

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e Sheets-Shet 3.

(No Modpl.)

S. J. JOHNSON.

DUMPING GAR.

No. 571,480. Patented Nov, 17, 1896.

IN VE N T0]? ATTORNEY WITNESSES:

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(No Model.) 6 Sheets-Sheet 4-.

s. J; JOHNSON.

DUMPING GAR.

WITNESSES: [NI/ENTOB /%w- 6 Br A TTORNEV (No Model.) 6 Sheets-Sheet 5.

S. J. JOHNSON. DUMPING UAR.

N0. 571,480. Patented Nov. 17, 1896.

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WITNESSES p 6% ATTORNEY.

(No Model.) 6 Sheets-Sheet I6.

S. J. JOHNSON.

DUMPING GAR.

No. 571,480. Patented N07. 17, 1896.

m 1 I MP H l l H U nldl 1 g ATTORNEY.

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ATENT FFICE.

SINCLAIR J. JOHNSON, OF NEIV YORK, N. Y.

DUMPlNG-CAR.

SPECIFICATION forming part of Letters Patent No. 571,480, dated November17, 1896. Application filed February 24, 1896. Serial No. 580,556. (Nomodel.)

To aZZ whom it may concern.-

Be it known that I, SINCLAIR J. JOHNSON, a citizen of the United States,anda resident of the city of New York, in the county and State of NewYork, have invented certain new and useful Improvements in Dumping-Oars,of which the following is such a full, clear, concise, and exactdescription as will enable others skilled in the art to which myinvention appertains to make and use the same, reference being had tothe accompanying drawings, forming part of this specification.

My invention relates to and is applicable for use upon hopper-bottomgondola cars and ore-cars, as well as some other styles of dumping-cars.It has for its objects'the construction and hanging of the gate or gateswhich close the bottom of the hopper or part from which the load isdumped in such manner as to facilitate opening and closing and avoid theobjections to hinged gates when open, as well as other objections whichhave heretofore been experienced.

To these ends the invention consists in combining with the car one ormore oscillating gates, which are suspended from above in such manner asto Vibrate or swing open and shut by bodily receding or advancing, andin providin g means for opening and closing the same, as hereinaftermore fully described, and pointed out in the claims.

In the accompanying drawings, Figure 1 is a side view of the hopper of ahopper-bottom gondola car, showing one end of each of two gates, thehangers by which the same are suspended, and certain lever connectionsfor opening and closing them, the gates being shown in this figure asclosed. Fig. 2 is a similar view of the same parts, but showing thegates as open. Fig. 3 is a similar view showing the hopper closed at thebottom of one gate only, the gate being suspended by two straps, each ofwhich is pivoted at each end so as to swing both from the points securedto the car and to the gates. In this figure the gate is shown as beingoperated by a modified form of the mechanism shown in Figs. 1 and 2, andits position when open is indicated by dotted lines. Fig. 4 is a similarview, but showing a divided or double hopper, each compartment of whichis closed by a single gate suspended and provided with the same meansfor opening and closing as shown in Fig. 3. Fig. 5 is a similar View ofa hopper having two gates suspended, as in Figs. 1 and 2, but providedwith lever connections arranged to open and close the gates separately,as in Figs. 3 and 4, the position shown being that of the gates closed,and their position when open being indicated by dotted lines. Fig. 6 isa similar view of the same parts, but shows the lever connections asapplied and secured upon the gates themselves, their po sition as shownbeing that when closed, and their position when open being indicated bydotted lines. Fig. '7 is a bottom plan of the gates and leverconnections shown by Fig. (5.

Fig. 8 is a sectional detail view of the inside of the hopper and one ofthe gates, with cer tain parts of the lever connections shown in Fig. 1.Fig. 9 is a similar sectional detail View of the gates and leverconnections shown in Figs. 6 and 7. Figs. 10 and 11 are partialsectional detail views of the gates and hang ers of Figs. 1, 2, 5, and6, shown in front and end views.

The drawings illustrate two forms of application of the improvement inmeans for suspending the gates so as to secure the results aimed at, andthat form which shows the gate suspended by hangers pivoted at theirlower ends to the gate and at their upper ends to the hopper or someportion of the car is more specifically made the subject of anapplication filed by me July 25, 1896, Serial No. 600,480. V

The drawings also show several forms of mechanism for opening andclosing the gates, which are more specifically made the subject ofapplications filed by me on February 24, 1896, Serial No. 580,557, and adivision of the same filed by me on July 25, 1896, Serial No. 600,479,as well as one other filed by me on February 24, 1896, Serial No.580,558.

In the drawings, A represents the side sill of a hopper-bottom car, andB the hopper for the same. The gates G O are shown as being made toclose the bottom of the hopper, and when opened the coal or other loadpasses out beneath the car. The gates O C are rigidly secured at theirouter edge and at each end by bolts or pivots c c to hangers therefor,which are shown as metallic straps b b, having one arm longer than theother, pivoted at the inner edge of the gate; and in Figs. 3 and 4 thereare two straps for one gate, pivoted at both ends, the longer onesupporting the front edge of the gate. As shown, the gates are eithersuspended from one arm of the hanger to which the outer edge thereof issecured, while the other and longer arm or strap of the hanger extendsdiagonally from the pivot to the inner edge of the gate and is securedthereto, forming a support for the same, or they .are pivotally securedat each edge to straps b I), which are also pivoted at their up perends.

released from its fastenings. suspension also has the advantage ofpermitting the gate to swing open or shut without having any portion ofit passvery much below the bottom of the hopper, the gate simply movingbodily and its front edge dropping lower than the rear edge, while bothedges change their relative position with respect to the exit for theload.

The gates are preferably made on a frame of Z-iron d for the outer andinner edges and of angle-iron d for each end, firmly riveted or boltedtogether, which frame is floored with suitable plank. The purpose ofusing the Z- iron is to secure great stiffness andafford goodconnections for the attachments. At the rear of each end of the gate aflat piece of iron d which supports the front edge, will have anoscillating motion, so as to open and close by causing the front edge ofthe gate to drop and describe a greater are than the rear edge, and whenopening the outer edge will swing back and up, thus forming an inclineto relieve the gate of accumulations adhering thereto prior to opening.

The gates are preferably opened and closed by means of certain leverconnections, the movements of which will have the effect of swingingthem on the pivots a a in either direction desired. I11 Figs. 1, 2, and8 this lever mechanism is shown as consisting of a shaft 6, having oneend square or otherwise adapted to receivea wrench for turning it. Thisshaft is supported by plate-brackets 'e", which are secured to the sidesill A by suitable bolts. On one end of the shaft (2 a notched disk orwheel e is secured outside of the supportingbracket, the notches beingadapted to receive a dog or pawl 6 pivoted to the bracket and which actsas a locking device to prevent any turning of the shaft. The pawl e isshown as being operated by an eccentric e, which is also secured to thebracket 6. On the shaft 6 and inside of the plate-bracket e adoublearmed crank or equivalent device is rigidly secured and one arm,f, of this crank is pivotally secured to one end of a lever-bar f, whichhas its opposite end pivotally secured to the gate hanger-strap b of thegate The other arm, f*, of the crank is also pivotally secured to oneend of a lever-bar f and the other end 1 of this bar is likewise securedto the hanger- The gates are shown as being eccentrically I suspendedfrom above the bottom of the hop- 1 per from a point or points which areoff the center of the weight of the gate, audit will tend to springpartially open of itself when j it is desired to dump the load and thegate is This eccentric strap b of the gate C.

The gates being closed, as in Fig. 1, and a wrench being applied to theend of the shaft (2, and the shaft being partially rotated, thecrank-arms f and f will by this action change their positions and movethe bars f and f which in turn will push the hanger-straps Z9 and b soas to swing them on the pivots a a, thereby causing the gates O and O toopen and assume the position shown in Fig. 2. A reverse movement of theshaft-c will have the opposite effect and close the gates.

In Figs. 3, 4E, and 5 the mechanism shown for opening and closing thegates is essentially the same, only that the shaft is used for each gateand is made to operate a single crankarm, and the barf, instead of beingsecured to the hanger-strap b, is secured to a lug g, projecting fromthe Z-iron cl. The operation is precisely the same as in the gate O'ofFig. 1, each separate or single gate beingoperated by the use of awrench in the same way.

In Figs. 6, 7 and 9 the lever mechanism is arranged to be operated by ashaft secured directly to one of the gates and made to swing with it.The shaft 6 (shown in these figures) is secured to the under side of thegate '0, just back of the Z-iron d, by means of a plate h, riveted orbolted to the angle-iron dof the frame'of the gate. This shaft issecured at both end-s in the same way and does not require awrench inorder to rotate it. 'In this form of the construction it is notnecessary to have lever-bars connecting with thehangerstrap. Each end ofthe shaft 6, or, if desired, a separate piece at each end, formsprojections or bars 0' along or near the ends of the gate and crosswisethereof, and these bars are pivoted at their outer ends to anothersimilar bar 2', a knuckle-joint being preferably formed at such union.The other end of the bar t" is also pivotally secured to the under sideof the gate 0 by means of aplate 72/, riveted or bolted to the back ofthe Z- iron d. The bar t" is provided with alug or catch t which hooksover a projection i made on the hanger-strap b of the gate 0, so

as to act as a secondary fastening for the purpose of holding the gatestogether. The bars 2' and t", by which the gates are coupled together,are prevented from swinging more than a short distance below the line oftheir dead-center, when the gates are closed, by means of a plate 77?,riveted or bolted to the rear Z-iron d of the gate 0. In order to securethe bars 2' and i from rising by reason of a knock or otherwise, ahook-rod it is fastened to the rear of the Z-iron cl of the gate 0' bymeans of staples 7c and 70 so as to slide in or out.

The gates O and 0 being closed, as shown in Figs. 6 and 7, are opened byraising the jointed lever rods or bars 71 and i, which,while the gatesare closed, lie folded together at the end of the gate 0. raised bytaking hold of one of them near the jointed end, and as they are liftedand moved the jointed ends will describe an upward and downwardeccentric course, as indicated by the dotted line in Fig. 6. Thismovement, which separates the bars t and 2', will cause the gates toswing open, their final position being that shown in full lines in Fig.2 and thatindicated by dotted lines in Fig. 6. When the gates are open,the bars will be separated, except at their joint, forming, as it were,a continuous bar, as indicated by the dotted lines in Fig. 6. To closethe gates requires a reverse movement of the levers 't' and 2', cansingthem to fold together as before, and in folding the gates are drawnalong with them to their former position.

As the invention is applicable to several styles of dumping-cars, someof which may not be provided with exits or outlets for the load at thebottom of what might technically be called a hopper, I wish itunderstood These bars can easily be that I make use of the word hopperin a broad sense simply to thereby designate that part of the carthrough which the load passes out and in connection with which the gateis applied, and hence I do not use such word in a restricted ortechnical sense.

It is obvious that changes may be made in the detail of construction andin the arrangement of the parts without departing either from the spiritor substance of my invention, and it is not my intention in thisapplication to claim other than, as stated, the different mechanismshown and described for opening and closing the gates.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. In combination with a dumping-car, a gate for closing the exit forthe load, said gate being suspended by two hangers supporting the edgesthereof, said hangers being pivotally secured above said gate and one ofthem being longer than the other, whereby one edge of said gate may bedropped lower and describe a greater are than the other during theopening and closing movements.

2. In combination with a dumping-car, a gate for closing the exit forthe load, said gate being suspended by two hangers rigidly secured tothe edges thereof, one of said hangers being longer than the other andplaced at a difierent angle to the gate, whereby one edge thereof may bedropped lower and describe a greater are than the other during theopening and closing movements.

SIN CLAIR J. JOHNSON. Witnesses:

E. G. WILKINSON, M. A. CAssIDY.

